hoistway

The safety part in hoistway and pit is finished, safety loop is connective.

井道全部件、底坑全部件位，全路导通。

Elastic mid-strength rock wool board: used for heat preservation, fireproofing and sound absorption for the building wall/roof, such as curtain wall, inner wall partition and elevator hoistway, etc.

有弹，中等强度岩棉板：适用于建筑墙体/顶保温、防火、吸音，如幕墙、内墙隔断、电梯井等。